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Electrocorticogram (ECoG) is an effective way for Epilepsy research, as well as automatic seizure detection. This study proposes a method for feature extraction and classification of pre-ictal and ictal ECoGs, based upon mutual information (MI) and support vector machine (SVM) which has not only high accuracy but also fast speed. First, the mutual information among 76 channels is computed and converted...
In this paper, we present auto-encoder (AE), stacked auto-encoder (SAE) and sparse auto-encoder (SPAE) to classify gaits of horse riding for real riding coaching. The parameters of each auto-encoder are adjusted to compare the performance. The data is collected from 16 inertial sensors attached to a motion capture suit to construct a motion database. We build the motion features as the method of gaits...
The Low Frequency Aperture Array (LFAA) component of the Square Kilometer Array (SKA) involves the processing of 218 signal chains, which will be performed on custom FPGA boards, the Tile Processing Module (TPM). These TPMs, as well as firmware running on them, need to be managed, monitored and controlled by the rest of the system. This requires access to on-board devices and registers on running...
Stress has become a household term for which ascertaining a meaning has become increasingly difficult these days. Physiologically, stress is observed to act through hypothalamus which modulates the autonomic nervous system mainly via sympathetically mediated effects. Utilizing this theory, a model based inference engine was developed for the estimation of stress. A computational model was used to...
This paper addresses the problem of automatic classification of OCT images for identification of patients with DME versus normal subjects. In this paper a relativity simple and practical approach is proposed to exploit the information in OCT images for a robust classification of Diabetic Macular Edema (DME) using coherent tensors. From the retinal OCT scan top and bottom layers are extracted to find...
Technology used to hide secret message in a communication called Steganography. Secret message can be text, image or any file that can be converted into binary. This secret message inserted into cover file which can be in form of image, sound or video, basiccaly cover file must be bigger than the secret message in size. Many methods have been proposed on how to hide secret messages in a cover file...
Frequent itemset mining is a fundamental step in analysis of big data where correlation among the raw data in deemed necessary. In modern era the amount of data available for processing has grown exponentially, making it a stepper task for mining algorithms to provide solution in a timely manner. The software implementations are normally not efficient in handling such datasets thus focus on parallel...
In the present paper, we consider a co-array as a coprime array or a nested array. Pal et al. proposed a method to extend a co-array to a larger virtual array, then implemented the spatial smoothing technique to construct the covariance matrix of a virtual uniform linear array (ULA). Thus subspace-based direction of arrival (DOA) estimation algorithms can be used to detect more sources than the number...
Massive MIMO is a promising next-generation wireless access technology. By flexibly assigning different numbers of antennas among connections, the transmission rate can be adjusted according to user requirement and channel conditions. However, providing layer-encoded SVC multimedia streams with such a technology is challenging because each user's transmitting antennas and provided layers have to be...
Glaucoma is a lifetime medical condition which might results in the deprivation of visual sense from an individual permanantly if remained untreated and undiagnosed at early phase. Some structural changes are observed by ophthalmologists using state of art biomedical imaging techniques i.e. Fundscopy and optical coherence tomography in retinal layers and optic nerve head of person effected by glaucoma...
Shared key generation between two users to exploit the randomness of wireless channels as a source of secret key bits extraction has become an attractive alternative to ensure security in a mobile environment. In this paper, we evaluate the performance of key extraction scheme using measurement results of Received Signal Strength (RSS) on several variations of settings and types of movement. We add...
Energy harvesting has become very attractive due to the extended usage time of devices. Among several forms of recycling energy, radiofrequency (RF) harvesting has been suggested due to its wide availability mainly in urban areas. Its applications range from sensor nodes to charging low power consumption portable devices and depend on the amount of antennas. In this paper, we evaluate the feasible...
The quality of any control design can be judged by the resulting transient response. When an adaptive control law is used for linear time-invariant systems with unknown parameters, the resulting transients can be rather unsatisfactory. This problem persists when the adaptive controller receives information about the output of the plant through a wireless network. In this paper, we use the multiple...
Efficient channel coding techniques for wireless communications become important solutions to meet the 5G requirements, especially on the aspect of high reliability and low latency communications in the Internet of Things (IoT) era. This paper proposes new degree distributions of Raptor Codes for devices supporting IoT communications with Low Density Generator Matrix (LDGM) codes as the precode, called...
Vehicular Ad-hoc Networks (VANETs) is a wireless networking technology that can be used to support the emergence of Intelligent Transportation Systems (ITS). The deployment of these systems will allow connected vehicle to communicate each other and also with the road side infrastructures in order to avoid possible accidents and provide more comfort applications to the driver and passenger. The designers...
Massive MIMO technology can increase capacity, data rate, and link reliability significantly without additional bandwidth or transmission power. Most of the previous study on Massive MIMO systems are using low frequency (2.6 GHz). This frequency is not suitable for future broadband technology, because IoT devices will use high frequency and possible cell coverage would be smaller. This work proposes...
A complete decoder is one that guarantees to decode a received vector to its nearest codeword. For the design of an efficient complete decoding algorithm, storage demand and decoding complexity are two essential factors. Along this consideration, the Zero-Guards algorithm provides a significant improvement as the number of vectors required to be stored has been made much less than what is required...
A time domain signal tracking algorithm is proposed to estimate the frequency of a chirp-type global navigation satellite system (GNSS) interference. The unknown interference frequency of GNSS in the received signal can be estimated by using the properties of the trigonometrical functions, but the thus-obtained value can have a lot of error caused by measurement noise and by the frequency change of...
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